Acacia Middle: math

The shaded band is this school's normal range. If nothing about how it works changes, nearly every future year should land inside it. Zero means the typical student just meets the state standard. The small numbers under the years are how many students were tested.

Measured against the grade 3 bar

The state's math test uses one scale for every grade, so a score means the same thing in grade 3 as in grade 8.

All students

6th The average 6th grader scores 33 points under the grade 3 bar. 2403 vs. 2436. The 6th-grade bar is 2552.
7th The average 7th grader scores just under the grade 3 bar. 2433 vs. 2436. The 7th-grade bar is 2567.
8th The average 8th grader scores just under the grade 3 bar. 2432 vs. 2436. The 8th-grade bar is 2586.

Students fluent in English

Math with English out of the way. Includes students who have only ever spoken English.

Grade bars 6th 264 students 27 points under the grade 3 bar. 7th 258 students 39 points under the grade 4 bar. 8th 219 students 33 points under the grade 4 bar.

English learners

Students leave this group as they become fluent, so its average stays low even where they learn well.

Grade bars 6th 42 students 68 points under the grade 3 bar. 7th 52 students 66 points under the grade 3 bar. 8th 57 students 83 points under the grade 3 bar.

the group's average that grade's own bar the distance between

2026 results. "Meets standard" is the state's mark for being on track for that grade. The state leaves out any group of ten students or fewer, so a grade may be missing from the charts.

Step 1 · Each year's result

For each grade tested, take the average (mean) scale score from the California Department of Education's results file, and subtract the lowest score that counts as "Standard Met" for that grade. That is the grade's distance from standard. Weight each grade by its share of the students tested, then add the grades up. Grades where the state hides the average because ten or fewer students tested are left out entirely.

2015 from sb_ca2015_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	56,600	2442.8	− 2552	−109.2	× 242 / 709	−37.3
7	56,603	2448.5	− 2567	−118.5	× 217 / 709	−36.3
8	56,604	2457.2	− 2586	−128.8	× 250 / 709	−45.4
Sum, rounded to a whole point						−119

2016 from sb_ca2016_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	52,582	2438.6	− 2552	−113.4	× 252 / 713	−40.1
7	52,583	2469.4	− 2567	−97.6	× 242 / 713	−33.1
8	52,586	2457.6	− 2586	−128.4	× 219 / 713	−39.4
Sum, rounded to a whole point						−113

2017 from sb_ca2017_1_csv_v2.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	54,091	2459.2	− 2552	−92.8	× 252 / 751	−31.1
7	54,093	2457.0	− 2567	−110	× 264 / 751	−38.7
8	54,094	2456.0	− 2586	−130	× 235 / 751	−40.7
Sum, rounded to a whole point						−110

2018 from sb_ca2018_1_csv_v3.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	54,200	2450.3	− 2552	−101.7	× 280 / 793	−35.9
7	54,202	2454.5	− 2567	−112.5	× 247 / 793	−35
8	54,204	2452.9	− 2586	−133.1	× 266 / 793	−44.6
Sum, rounded to a whole point						−116

2019 from sb_ca2019_1_csv_v4.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	54,438	2453.9	− 2552	−98.1	× 276 / 801	−33.8
7	54,439	2451.7	− 2567	−115.3	× 263 / 801	−37.9
8	54,440	2459.3	− 2586	−126.7	× 262 / 801	−41.4
Sum, rounded to a whole point						−113

2022 from sb_ca2022_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	54,484	2414.9	− 2552	−137.1	× 362 / 969	−51.2
7	54,485	2420.4	− 2567	−146.6	× 271 / 969	−41
8	54,486	2441.9	− 2586	−144.1	× 336 / 969	−50
Sum, rounded to a whole point						−142

2023 from sb_ca2023_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	54,433	2393.6	− 2552	−158.4	× 322 / 962	−53
7	54,434	2410.1	− 2567	−156.9	× 352 / 962	−57.4
8	54,435	2431.9	− 2586	−154.1	× 288 / 962	−46.1
Sum, rounded to a whole point						−157

2024 from sb_ca2024_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	54,305	2400.4	− 2552	−151.6	× 280 / 974	−43.6
7	54,306	2409.5	− 2567	−157.5	× 327 / 974	−52.9
8	54,307	2430.5	− 2586	−155.5	× 367 / 974	−58.6
Sum, rounded to a whole point						−155

2025 from sb_ca2025_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	54,043	2405.0	− 2552	−147	× 337 / 944	−52.5
7	54,044	2418.0	− 2567	−149	× 270 / 944	−42.6
8	54,045	2436.4	− 2586	−149.6	× 337 / 944	−53.4
Sum, rounded to a whole point						−149

2026 from sb_ca2026_1_csv_v1.zip

Grade	Line in file	Average score	Standard Met	Distance	Students	Weighted
6	53,982	2403.2	− 2552	−148.8	× 306 / 892	−51
7	53,983	2433.0	− 2567	−134	× 310 / 892	−46.6
8	53,984	2432.0	− 2586	−154	× 276 / 892	−47.7
Sum, rounded to a whole point						−145

Step 2 · The average and the normal range

Average: add the yearly results and divide by how many there are. −119, −113, −110, −116, −113, −142, −157, −155, −149, −145 → −131.9
Typical year-to-year change: how far the result moved from each year to the next, ignoring up or down. 2015→2016: 6 · 2016→2017: 3 · 2017→2018: 6 · 2018→2019: 3 · 2019→2022: 29 · 2022→2023: 15 · 2023→2024: 2 · 2024→2025: 6 · 2025→2026: 4 → average 8.2
Normal range: multiply the typical change by 2.66, then add it to the average and subtract it. 8.2 × 2.66 = 21.8. Upper limit −110.1, lower limit −153.7.

Why 2.66? It is the standard factor from quality control, the work of Walter Shewhart and W. Edwards Deming. It turns "how much the result typically changes in a year" into "how far it can wander by chance alone".

Years with no result (no state tests were given in spring 2020) are skipped: the year-to-year change runs from the last year with a result to the next one.

Step 3 · Free or reduced-price meals

The share of enrolled students eligible for free or reduced-price meals. From 2014–15, 2015–16, 2016–17, 2017–18, 2018–19, 2020–21, 2021–22, 2022–23, 2023–24, 2024–25, 2025–26.